hi everybody.
I bought this display http://pt.aliexpress.com/item/2-2-Serial-TFT-SPI-LCD-Module-Display-240x320-Chip-ILI9341-PCB-Adapter-SD-Card-Hot/1721716254.html and am trying to use with an arduino uno, but it still fails.
Could someone help me with a wiring diagram to connect this display with arduino uno?
Could someone provide me a simple example, we write (Hello World) on the display?
Thank you
just visit these pages.
refer "Show me how to do that" for circuit connection.There is an error in that circuit.plz connect MISO pin of dispaly to Arduino UNO pin 12.
This display which I bought, and LED pins VCC if powered with 5V, will burn my display?
Thank you
yes,
the display you have works on 3.3v.
In this code sample, I need to change something so that the wiring diagram shown in the example of the site work?
#include <TFT.h> // Arduino LCD library
#include <SPI.h>
// pin definition for the Uno
#define cs 10
#define dc 9
#define rst 8
// pin definition for the Leonardo
// #define cs 7
// #define dc 0
// #define rst 1
// create an instance of the library
TFT TFTscreen = TFT(cs, dc, rst);
// char array to print to the screen
char sensorPrintout[4];
void setup() {
// Put this line at the beginning of every sketch that uses the GLCD:
TFTscreen.begin();
// clear the screen with a black background
TFTscreen.background(0, 0, 0);
// write the static text to the screen
// set the font color to white
TFTscreen.stroke(255,255,255);
// set the font size
TFTscreen.setTextSize(2);
// write the text to the top left corner of the screen
TFTscreen.text("Sensor Value :\n ",0,0);
// ste the font size very large for the loop
TFTscreen.setTextSize(5);
}
void loop() {
// Read the value of the sensor on A0
String sensorVal = String(analogRead(A0));
// convert the reading to a char array
sensorVal.toCharArray(sensorPrintout, 4);
// set the font color
TFTscreen.stroke(255,255,255);
// print the sensor value
TFTscreen.text(sensorPrintout, 0, 20);
// wait for a moment
delay(250);
// erase the text you just wrote
TFTscreen.stroke(0,0,0);
TFTscreen.text(sensorPrintout, 0, 20);
}
Run the ILI9340/41 ONLY from 3.3V.
Most Arduino clones like the Mini, Nano, Pro will run @16MHz... No guarantees. If you must run the Arduino at 5V you MUST use level shifter(s).
An alternative us the 8MHz 3.3V Arduino compatible from Sparkfun (others.)
My ILI9341 projects:
http://www.hackster.io/rayburne